33.----How long have you been in this office?----Just a few minutes. My cousins_______here together with me.
#103886
A
have walked
B
had walked  
C
walked
D
have been walking
推荐题目
--- Why does the lake smell terrible?--- Because large quantities of water _________.
#101273
A
have polluted
B
is being polluted
C
has been polluted
D
have been polluted
 Measures _______ to raise the employees’ salaries if the prices are rising all the time.
#99223
A
had been taken
B
have been taken
C
will be taken
D
were taken